I have been trying to book a BA award through aa.com and every time I get through the passenger information page I get the "This Page Must Have Taken Flight" error page. I've now tried over several days, using different accounts, different browsers, and on the app as well. I've even tried different BA flights but get the same error. No trouble holding or booking AA flights. I know I could call to book, just haven't had the time for the long holds. Is this a known error for BA flights?